<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <base href="http://localhost:8080/WebApp01_war_exploded/a/b/c.html">
    <!--也可以写成下面这样-->
<!--    <base href="http://localhost:8080/WebApp01_war_exploded/a/b/">-->
</head>
<body>
    c.html<br>
    <a href="../../index.html">跳回首页</a>
</body>
</html>